What is the Cisco N540-PWR400-D?
The Cisco N540-PWR400-D is a power supply unit, listed by the manufacturer as "NCS 540 400W DC PSU.". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.
CircularTelecomParts Catalogue

Part Overview
Looking for the Cisco N540-PWR400-D? This power supply unit, described by the manufacturer as "NCS 540 400W DC PSU.", is stocked and resold through Circular Telecom's refurbished and surplus telecom equipment network.
Common Questions
The Cisco N540-PWR400-D is a power supply unit, listed by the manufacturer as "NCS 540 400W DC PSU.". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.
Circular Telecom sources and resells surplus and refurbished Cisco network equipment, including parts such as the N540-PWR400-D, subject to current availability. Contact Circular Telecom for a live quote.
Circular Telecom Catalogue